Sink-trap protector



No. 627,0l6.

(N0 model.)

Patented lune I3, |899. J. F. SCHULTHEISS. SINK TRAP PBUTEGTOR.

(Application led Mar. 29. 1899.)

rrEn STATES PATErrr- OEEicE.

JOSEPH FREDRICK SCHULTHEISS, OE NORTH PLAINFIELD, NEW JERSEY.

SINK-TRAP PROTECTOR.

SPECIFICATION forming part of Letters Patent 627,016, dated J une 13,1899.

Application filed March 29, 1899. Serial No. 710,953- (No model.)

T all whom, t 77mg concern.-

Be it known that I, JOSEPH FREDRICK SCHULTHEIss, a citizen of the UnitedStates, residing at North Plainfield, in the county of Union and Stateof New Jersey, have invented certain new and useful Improvements inSink- Trap Protectors; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to improvements in sink-valves, and moreparticularly to that class of sink stench-protectors which are intendedto prevent the sewer-gas from passing backward through the sink; and theo bject is to provide a simple, inexpensive, and effective device ofthis character.

' To these ends the inventionl consists in certain features ofconstruction and combination of parts, Which will be hereinafter morefully described and claimed.

In the accompanying drawings the same reference characters indicate thesame parts of the invention.

Figure l is a perspective view of my improved stench-preventervalve asit appears applied to a kitchen-sink. Fig. 2 is a longitudinal sectionof thesame.

l denotes a hemispherical float formed with a flat bottom 2, providedwith a serrated flange 3, in which is secured a rubber disk 4 of a sizecorresponding to the sink strainer-plate, as shown.

5 denotes a tubular guide-stem closed at its top and extendingvertically through the rnbber washer 4f, the bottom 2, and the iioat l,the lower end of the tube extending through the strainenplate to permitthe device to rise and fall by the action of the Water in the sink.

When the device is at rest, the rubber Washer rests on thestrainer-plate and forms a valve to close the same and eftectuaily prevents any foul gases from backing up from the sewer through the sinkinto the room.

I/Vlien Waste Water is run into the sink, it raises the iioat andescapes and the float falls again and seals the outlet.

When it is desired to iill the sink with water, Which may be necessaryat times, a detachable Weight 6 is slipped over the upper end of thestem 5 to counteract the tendency of the float.

The accompanying drawings show my invention in the best form noW knownto me; but many changes in the details might be made Within the skill ofa good mechanic Without departing from the spirit of my invention as setforth in theclaim at the end of this specification.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

The float l formed With the bottom 2 and provided with a serrated ortoothed [lange 3, a rubber disk 4 secured therein, the vertical stein 5,secured in said oat, and an independent Weight adapted to overcome thebuoyancy of said float, substan ti ally as shown and described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnes'ses.

JOSEPH FREDRICK SGllUl/llllilSS.

Vitnesses:

UZAL B. CRANE, WM. R. MATTOX.

